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145951492 = 2239791909
BaseRepresentation
bin10001011001100…
…00101100000100
3101011122002210211
420230300230010
5244330421432
622252125204
73421365361
oct1054605404
9334562724
10145951492
1175427575
1240a66804
132431223b
1415553468
15cc2ed47
hex8b30b04

145951492 has 12 divisors (see below), whose sum is σ = 256061260. Its totient is φ = 72791136.

The previous prime is 145951469. The next prime is 145951501. The reversal of 145951492 is 294159541.

It can be written as a sum of positive squares in 2 ways, for example, as 129823236 + 16128256 = 11394^2 + 4016^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44367 + ... + 47542.

Almost surely, 2145951492 is an apocalyptic number.

It is an amenable number.

145951492 is a deficient number, since it is larger than the sum of its proper divisors (110109768).

145951492 is a wasteful number, since it uses less digits than its factorization.

145951492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92310 (or 92308 counting only the distinct ones).

The product of its digits is 64800, while the sum is 40.

The square root of 145951492 is about 12081.0385315171. The cubic root of 145951492 is about 526.5054200241.

The spelling of 145951492 in words is "one hundred forty-five million, nine hundred fifty-one thousand, four hundred ninety-two".

Divisors: 1 2 4 397 794 1588 91909 183818 367636 36487873 72975746 145951492